「今気づかれていないったって、毎日真面目に努力すればいつか報われると信じています。」<- Did you come up with the sentence? What did you mean to say by that (especially the first half)? 誰に、何を気づかれてないんでしょうか。前半と後半の意味的なつながりがよくわかりません。
– Chocolate♦Apr 19 at 0:41

@Chocolate「今気づかれてなくたって、毎日真面目に努力すればいつか報われると信じてる。」is the sentence I found. The one with "...いないったって, ..." is the sentence I made. I think the sentence means "Even though nobody knows my efforts now, as long as I work hard everyday, one day I will receive the deserved reword (become renowned, etc)."
– NoNamesApr 19 at 7:03

Your interpretation of the original sentence looks good to me. The いなくたって (≂ いなくても) here cannot be rephrased as いないったって (≂ いないと言っても).
– Chocolate♦Apr 20 at 1:59

2 Answers
2

This ったって is basically a contracted form of と言ったって (see this question, too). So think of it as "even though someone says/thinks/tries ～" rather than simple "even though ～". A phrase that comes before ったって must be either of the following:

a topic which has been already brought up in the conversation / a phrase actually said by someone

So according to 大辞林, we should use 連用形 (ends with く for i-adjectives) when we mean「たとえ…ても」 and 終止形 (ends with い for i-adjectives) when we mean「…といっても」or「…としても」.

① 動詞・形容詞の連用形に付き、「たとえ…ても」の意を表す。

② 活用語の終止形に付き、「…といっても」「…としても」の意で、強い逆接を表す。この場合、「ったって」の形になるのが一般である。

Both of the examples you listed are in the sense of「…といっても」(even though one might say). But I think your example, you are trying to say something like

"Even though I don't notice it now, I believe that if I work hard every
day I will be rewarded one day."

You aren't talking about saying if you 気づかれていない or not. 気づかれていない is something that has already happened. So we can't use it in sense of 「…といっても」. We need to compare 「たとえ…ても」and「…としても」.

To put it simply,「…としても」is used for purely hypothetical future situations and 「たとえ…ても」can be used to indicate something that already happened. Here's an example:

せっかく英語を学んでも、使う機会がない (Even though I have learned English, I have no
chances to use it.)

The important thing is that the 学ぶ has already happened just like the 気づかれていない in your example. That's why the form that means 「たとえ…ても」 is correct, which means we need to use the 連用形 form of the adjective.